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WHICH(1)                   OpenBSD Reference Manual                   WHICH(1)

NAME
     which - locate a program file (or files) in the path

SYNOPSIS
     which [-a] name [...]

DESCRIPTION
     which takes a list of names and looks for the files which would be exe-
     cuted had these names been given as commands.  Each argument is searched
     for along the user's path.

     If the -a flag is given, which will return a list of all matches instead
     of just the first match.

     The which utility exits with one of the following values:

     0     All names were successfully resolved.
     1     Some names were resolved but not all.
     2     No names were resolved.
     -1    A system error occurred.

ENVIRONMENT
     The following environment variables affect the execution of which:

     PATH  A colon-separated list of directories in which to find executables.
           If PATH is not set, and the given name is not a fully qualified or
           relative pathname, which will fail.

DIAGNOSTICS
     A diagnostic is given if an executable file with the argument name was
     not found in the path.

SEE ALSO
     csh(1), find(1), locate(1), sh(1), whereis(1), environ(7)

HISTORY
     A which command appeared in 3.0BSD.

CAVEATS
     The which command formerly was a csh(1) script and could expand aliases.
     csh(1) now has a built-in which command so this version is intended for
     use with other shells like sh(1).

OpenBSD 3.4                    February 21, 1997                             1

NAME | SYNOPSIS | DESCRIPTION | ENVIRONMENT | DIAGNOSTICS | SEE ALSO | HISTORY | CAVEATS

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